None— there are too many modes of communication for one vehicle to be able to express all the languages in the world. Some languages are sound based, some are visual based, some use clicks and breathing, not all are written. C3PO would be a close match, except he wouldn’t fail so bad at all the sign languages. @CWOTUS—does that mean you can use French Sign Language, British Sign Language, Swedish Sign Language, etc too??? The international linguistics associations recognize them as legitimate langauges distinct and separate from their spoken counterparts.
Is this an actual question or a riddle?